I just got my 85 Transporter out of winter storage. The temperature control for the front heater (middle lever of the three levers, is stuck in the right (hot) position. When I try to move it to the left (cold) it won't go very far before encountering a springy resistance - feels like a cable is kinked or obstructed in some way. 

Anyone had this happen - can tell me what the fix is. The idea of going in behind the dash scares me. I've seen so many cases where even professionals open up a dash to fix one thing and succeed - but 2 or 3 other things don't work afterward. Guidance/advice would be appreciated.

Alan
Ottawa Canada
'85 Transporter converted to Wesfalia